1319344227721 has 8 divisors (see below), whose sum is σ = 1437950707200. Its totient is φ = 1203183242832.

The previous prime is 1319344227637. The next prime is 1319344227731. The reversal of 1319344227721 is 1277224439131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1319344227721 - 2³⁹ = 769588413833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1319344227731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611372521 + ... + 611374678.

It is an arithmetic number, because the mean of its divisors is an integer number (179743838400).

Almost surely, 2^{1319344227721} is an apocalyptic number.

It is an amenable number.

1319344227721 is a deficient number, since it is larger than the sum of its proper divisors (118606479479).

1319344227721 is a wasteful number, since it uses less digits than its factorization.

1319344227721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222747295.

The product of its digits is 508032, while the sum is 46.

The spelling of 1319344227721 in words is "one trillion, three hundred nineteen billion, three hundred forty-four million, two hundred twenty-seven thousand, seven hundred twenty-one".